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Polaritonic Rabi and Josephson Oscillations

The dynamics of coupled condensates is a wide-encompassing problem with relevance to superconductors, BECs in traps, superfluids, etc. Here, we provide a unified picture of this fundamental problem that includes i) detuning of the free energies, ii) different self-interaction strengths and iii) fini...

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Autores principales: Rahmani, Amir, Laussy, Fabrice P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4958973/
https://www.ncbi.nlm.nih.gov/pubmed/27452872
http://dx.doi.org/10.1038/srep28930
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author Rahmani, Amir
Laussy, Fabrice P.
author_facet Rahmani, Amir
Laussy, Fabrice P.
author_sort Rahmani, Amir
collection PubMed
description The dynamics of coupled condensates is a wide-encompassing problem with relevance to superconductors, BECs in traps, superfluids, etc. Here, we provide a unified picture of this fundamental problem that includes i) detuning of the free energies, ii) different self-interaction strengths and iii) finite lifetime of the modes. At such, this is particularly relevant for the dynamics of polaritons, both for their internal dynamics between their light and matter constituents, as well as for the more conventional dynamics of two spatially separated condensates. Polaritons are short-lived, interact only through their material fraction and are easily detuned. At such, they bring several variations to their atomic counterpart. We show that the combination of these parameters results in important twists to the phenomenology of the Josephson effect, such as the behaviour of the relative phase (running or oscillating) or the occurence of self-trapping. We undertake a comprehensive stability analysis of the fixed points on a normalized Bloch sphere, that allows us to provide a generalized criterion to identify the Rabi and Josephson regimes in presence of detuning and decay.
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spelling pubmed-49589732016-08-04 Polaritonic Rabi and Josephson Oscillations Rahmani, Amir Laussy, Fabrice P. Sci Rep Article The dynamics of coupled condensates is a wide-encompassing problem with relevance to superconductors, BECs in traps, superfluids, etc. Here, we provide a unified picture of this fundamental problem that includes i) detuning of the free energies, ii) different self-interaction strengths and iii) finite lifetime of the modes. At such, this is particularly relevant for the dynamics of polaritons, both for their internal dynamics between their light and matter constituents, as well as for the more conventional dynamics of two spatially separated condensates. Polaritons are short-lived, interact only through their material fraction and are easily detuned. At such, they bring several variations to their atomic counterpart. We show that the combination of these parameters results in important twists to the phenomenology of the Josephson effect, such as the behaviour of the relative phase (running or oscillating) or the occurence of self-trapping. We undertake a comprehensive stability analysis of the fixed points on a normalized Bloch sphere, that allows us to provide a generalized criterion to identify the Rabi and Josephson regimes in presence of detuning and decay. Nature Publishing Group 2016-07-25 /pmc/articles/PMC4958973/ /pubmed/27452872 http://dx.doi.org/10.1038/srep28930 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Rahmani, Amir
Laussy, Fabrice P.
Polaritonic Rabi and Josephson Oscillations
title Polaritonic Rabi and Josephson Oscillations
title_full Polaritonic Rabi and Josephson Oscillations
title_fullStr Polaritonic Rabi and Josephson Oscillations
title_full_unstemmed Polaritonic Rabi and Josephson Oscillations
title_short Polaritonic Rabi and Josephson Oscillations
title_sort polaritonic rabi and josephson oscillations
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4958973/
https://www.ncbi.nlm.nih.gov/pubmed/27452872
http://dx.doi.org/10.1038/srep28930
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